Event: Worcestershire Challengers' League

Opponent Rating Result
Peter W Lawrence 1657 ½ - ½
Antonia (Toni) T Reed 1564 1 - 0
Che Adams 0 ½ - ½
Edward Higgs 1543 0 - 1
Steve Alcock 1479 1 - 0
Arnold G Kirkland 1597 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1440 = (7840 + 400 * (3 - 1)) / 6)

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